TY - GEN
T1 - A new type single-stage three-phase inverter with star-buck converter structure
AU - Lee, Jia You
AU - Chen, Jheng Hung
N1 - Publisher Copyright:
© VDE VERLAG GMBH, Germany
PY - 2017
Y1 - 2017
N2 - This paper presents an easier circuit which not only has high power density and good efficiency but also low total harmonic distortion (THD). This inverter is provided by three groups of buck converter. By means of using pulse-width modulation (PWM), each group of buck converter is able to convert output DC voltage to form an AC output. The angle difference between each group is 120 degree, so three-phase AC voltage can be obtained on the load side. Dual-loop control mechanism is used in three-phase inverter control strategy for improving the transient and stability on the star buck converter. The main reason of using the star buck inverter system is reducing the complication of converter circuit installed after the solar system, so the loss of the converter is reduced to minimum. The current sharing control is also used in this system in order to balance the output power of each converter, increase output power and improve the stability and reliability of the whole three-phase inverter system. Finally, a 1.5 kW three-phase inverter system is constructed. The maximum efficiency of the system is 90% and total harmonic distortion is below 3%.
AB - This paper presents an easier circuit which not only has high power density and good efficiency but also low total harmonic distortion (THD). This inverter is provided by three groups of buck converter. By means of using pulse-width modulation (PWM), each group of buck converter is able to convert output DC voltage to form an AC output. The angle difference between each group is 120 degree, so three-phase AC voltage can be obtained on the load side. Dual-loop control mechanism is used in three-phase inverter control strategy for improving the transient and stability on the star buck converter. The main reason of using the star buck inverter system is reducing the complication of converter circuit installed after the solar system, so the loss of the converter is reduced to minimum. The current sharing control is also used in this system in order to balance the output power of each converter, increase output power and improve the stability and reliability of the whole three-phase inverter system. Finally, a 1.5 kW three-phase inverter system is constructed. The maximum efficiency of the system is 90% and total harmonic distortion is below 3%.
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M3 - Conference contribution
AN - SCOPUS:85049918466
T3 - PCIM Asia 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Proceedings
SP - 318
EP - 325
BT - PCIM Asia 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Proceedings
PB - VDE Verlag GmbH
T2 - 2017 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Asia 2017
Y2 - 27 June 2017 through 29 June 2017
ER -
